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Crystallization of medium-length 1-alcohols in mesoporous silicon: An x-ray diffraction study

Published on Apr 11, 2008in Physical Review E2.35
· DOI :10.1103/PhysRevE.77.042602
Anke Henschel7
Estimated H-index: 7
(Saarland University),
Patrick Huber48
Estimated H-index: 48
(Saarland University),
Klaus Knorr22
Estimated H-index: 22
(Saarland University)
Abstract
The linear 1-alcohols n{\text{-C}}_{16}{\text{H}}_{33}\text{OH} n{\text{-C}}_{17}{\text{H}}_{35}\text{OH} n{\text{-C}}_{19}{\text{H}}_{39}\text{OH}have been imbibed and solidified in lined up, tubular mesopores of silicon with 10 and 15 nm mean diameters, respectively. X-ray diffraction measurements reveal a set of six discrete orientation states (``domains'') characterized by a perpendicular alignment of the molecules with respect to the long axis of the pores and by a fourfold symmetry about this direction, which coincides with the crystalline symmetry of the Si host. A Bragg peak series characteristic of the formation of bilayers indicates a lamellar structure of the spatially confined alcohol crystals in 15 nm pores. By contrast, no layering reflections could be detected for 10 nm pores. The growth mechanism responsible for the peculiar orientation states is attributed to a nanoscale version of the Bridgman technique of single-crystal growth, where the dominant growth direction is aligned parallel to the long pore axes. Our observations are analogous to the growth phenomenology encountered for medium length nalkanes confined in mesoporous silicon [A. Henschel, T. Hofmann, P. Huber, and K. Knorr, Phys. Rev. E 75, 021607 (2007)] and may further elucidate why porous silicon matrices act as an effective nucleation-inducing material for protein solution crystallization.
  • References (27)
  • Citations (23)
References27
Newest
#1Anke Henschel (Saarland University)H-Index: 7
#2Tommy Hofmann (Saarland University)H-Index: 13
Last.Klaus Knorr (Saarland University)H-Index: 22
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#1Sara Stolyarova (Technion – Israel Institute of Technology)H-Index: 11
#2Emmanuel N. Saridakis (Imperial College London)H-Index: 52
Last.Yael Nemirovsky (Technion – Israel Institute of Technology)H-Index: 34
view all 4 authors...
#1Patrick Huber (Saarland University)H-Index: 48
#2Viktor Soprunyuk (Saarland University)H-Index: 7
Last.Klaus Knorr (Saarland University)H-Index: 22
view all 3 authors...
#1Martin Steinhart (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 41
#2Petra Göring (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 20
Last.Thomas Thurn-AlbrechtH-Index: 27
view all 7 authors...
Cited By23
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#1M. M. Lazarenko (KNU: Taras Shevchenko National University of Kyiv)H-Index: 2
#2A. N. Alekseev (KNU: Taras Shevchenko National University of Kyiv)H-Index: 1
Last.K. I. Hnatiuk (KNU: Taras Shevchenko National University of Kyiv)
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#1Jia Tang (USTB: University of Science and Technology Beijing)H-Index: 11
#2Mu Yang (USTB: University of Science and Technology Beijing)H-Index: 20
Last.Ge Wang (USTB: University of Science and Technology Beijing)H-Index: 27
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#1Julia Haddad (BIU: Bar-Ilan University)H-Index: 4
#2Hans-Georg Steinrück (FAU: University of Erlangen-Nuremberg)H-Index: 9
Last.Benjamin M. Ocko (BNL: Brookhaven National Laboratory)H-Index: 40
view all 13 authors...
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